Handguns

Beretta 92SB

When a thug tries to fight Caldwell in a diner, SFPD Inspector Jay Austin (Mark Harmon) holds up his Beretta 92SB to keep it fair. (Thinking logically, no experienced/well taught Police Detective/Officer would flash his sidearm, at least until he identified himself as a Police Officer) Note the rounded trigger guard.

Austin's Beretta falls on the steps during his encounter with Donna Caldwell (Meg Ryan). Note the Pachmayr rubber grip.

Austin holds the Beretta as he and Caldwell take incoming fire.

Austin opens fire on the conveyor belt with the Beretta.

The handgun fired at Patti Jean is supposed to be a Tokarev, but here it appears to be a Beretta.

Smith & Wesson Model 19

Howard Buckley (Don Calfa), a crazed suspect, is seen taking what appears to be a Smith & Wesson Model 19 from an SFPD Inspector and holding it on Austin at the film's beginning.

M1911A1

Sgt. Major MacClure (Jack Warden) is seen using an M1911A1 with custom grips to threaten Peale at the end of the film. This gun was given to him by Caldwell (Sean Connery) after MacClure saved his life in Vietnam. Caldwell is also seen using it during water plant shootout.

Colt Commander

One of Peale's henchmen uses a stainless Colt Commander to knock out Sgt. Major MacClure.

Holding the pistol on the right.

Submachine Guns

Heckler & Koch SP89

During the final shootout, Peale's henchman Mark (Patrick Kilpatrick) uses the Heckler & Koch SP89 with the forearm removed against Caldwell and Austin. Other henchmen are seen using the H&K's with the foregrips.

Heckler & Koch SP89 Pistol)

Other henchmen are seen using the H&K's with the foregrips.

Heckler & Koch MP5K 9x19mm with foregrip removed (Similar to the weapon seen in this film, but it's an SP89.)